Powermap
PowerMap is The Voltt's tool for understanding the pulse power capability of cells.
It works by running thousands of Equivalent Circuit Model (ECM) simulations in the cloud to determine the maximum discharge power a cell can deliver at different states of charge (SOC) and temperatures.
This lets you explore where cells perform best, compare across multiple candidates, and make informed choices for applications that require short bursts of power — from drone takeoff and landing, to motorsport acceleration, to emergency power delivery.
Key Features
Cloud-Based ECM Simulations
Behind the scenes, PowerMap runs thousands of optimized simulations using About:Energy’s Equivalent Circuit Model (ECM).
Instead of running single cases, PowerMap explores the entire operating space — mapping out maximum available pulse power at every combination of SOC and temperature.
This answers questions like:
- At what SOC window does a power cell deliver its best performance?
- How much peak power can I get at 40 °C and 20% SOC?
- Which of my shortlisted cells can sustain longer pulses without overheating?
The Powermap tool allows you to:
Visualise Power Capabilities
- 2D Contour Plots: See power capability across SOC and temperature ranges
- Interactive Exploration: Click and hover to explore specific operating points
- Safety Boundaries: Visualize safe operating limits and constraints
Compare Multiple Cells
- Side-by-Side Comparison: Compare up to 4 cells simultaneously
- Performance Metrics: Compare power, C-rate, current, and resistance
- Thermal Analysis: Visualize heat generation across operating conditions
- Operating Windows: Identify optimal operating regions for each cell
Analyze Performance Trends
- SOC Effects: Understand how power varies with state-of-charge
- Temperature Effects: See how temperature impacts power capability
- Resistance Analysis: Track internal resistance changes
- Heat Generation: Monitor thermal effects across operating conditions
Export and Share Results
- High-Quality Images: Export powermaps for presentations and reports
- Data Export: Download power data for further analysis
- Comparison Reports: Generate side-by-side comparison documentation
Powermap Parameters
Configure your powermap analysis with these key parameters:
| Parameter Category | Parameter | Options/Default | Description |
|---|---|---|---|
| Select Cells | Cells | From Cell Library | Choose battery cells for powermap analysis |
| Initial Pulse Conditions | Temperature Range | 0-60°C (default) | Temperature range for pulse analysis |
| SOC Range | 5-95% (default) | State-of-charge range for analysis | |
| Environment Conditions | Ambient Temperature | 25°C (default) | Operating environment temperature |
| Heat Transfer Coefficient | 50 W/m²K (default) | Thermal cooling efficiency. Reference values: 5-15 (Natural convection), 10-100 (Forced air cooling), 500-2000 (Forced water cooling), >10000 (Approximates isothermal) | |
| Constraints | Pulse Duration | 30s (default) | Duration of power pulse for analysis |
| Min. Pulse Voltage | 2.5V (default) | Minimum voltage during pulse | |
| Max. Temperature | 80°C (default) | Maximum temperature during analysis | |
| Termination Conditions | Min. Pulse Voltage | 2.5V (default) | Minimum voltage cutoff |
| Max. Temperature | 80°C (default) | Maximum temperature cutoff | |
| Max. C-Rate | 10C (default) | Maximum C-rate for analysis |
Common Use Cases
PowerMap is especially useful in scenarios where short bursts of power are critical:
- Drones: Ensuring enough peak power for takeoff, landing, and emergency maneuvers
- Motorsport: Evaluating acceleration performance under thermal limits
- High-power tools & systems: Understanding safe pulse operation windows
By combining Cell Library, Simulate, and PowerMap, The Voltt provides a complete workflow — from cell selection to mission-cycle performance to peak-power mapping.
Version History
| Version | Release Date | Comments |
|---|---|---|
| 1.0 | 23 Sep 2025 | First release of documentation |